Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light

Dawid Pinkowicz; Min Ren; Li Min Zheng; Saki Sato; Miki Hasegawa; Masakazu Morimoto; Masahiro Irie; Brian K. Breedlove; Goulven Cosquer; Keiichi Katoh; Masahiro Yamashita

doi:10.1002/chem.201402647

Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light

Dawid Pinkowicz, Min Ren, Li Min Zheng, Saki Sato, Miki Hasegawa, Masakazu Morimoto, Masahiro Irie, Brian K. Breedlove, Goulven Cosquer, Keiichi Katoh, Masahiro Yamashita

SCI - Chemistry

Research output: Contribution to journal › Article › peer-review

73 Citations (Scopus)

Abstract

Lanthanide-based extended coordination frameworks showing photocontrolled single-molecule magnet (SMM) behavior were prepared by combining highly anisotropic Dy^IIIand Ho^IIIions with the carboxylato-functionalized photochromic molecule 1,2-bis(5-carboxyl-2-methyl-3-thienyl)perfluorocyclopentene (H₂dae), which acts as a bridging ligand. As a result, two new compounds of the general formula [{Ln^III₂(dae)₃(DMSO)₃(MeOH)}⋅10 MeOH]_n(M=Dy for 1 a and Ho for 2) and two additional pseudo-polymorphs [{Dy^III₂(dae)₃(DMSO)₃(H₂O)}⋅x MeOH]_n(1 b) and [{Dy^III₂(dae)₃(DMSO)₃(DMSO)}⋅x MeOH]_n(1 c) were obtained. All four compounds have 2D coordination-layer topologies, in which carboxylate-bridged Ln₂units are linked together by dae²⁻anions into grid-like frameworks. All four compounds exhibited a strong reversible photochromic response to UV/Vis light. Moreover, both 1 a and 2 show field-induced SMM behavior. The slow magnetic relaxation of 1 a is influenced by the photoisomerization reaction leading to the observation of the cross-effect: photocontrolled SMM behavior.

Original language	English
Pages (from-to)	12502-12513
Number of pages	12
Journal	Chemistry - A European Journal
Volume	20
Issue number	39
DOIs	https://doi.org/10.1002/chem.201402647
Publication status	Published - 2014 Sept 22

Keywords

lanthanides
layered compounds
magnetic properties
photochromism
single-molecule magnets

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10.1002/chem.201402647

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@article{1b16abce27504de1aac4df1869f0229a,

title = "Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light",

abstract = "Lanthanide-based extended coordination frameworks showing photocontrolled single-molecule magnet (SMM) behavior were prepared by combining highly anisotropic DyIIIand HoIIIions with the carboxylato-functionalized photochromic molecule 1,2-bis(5-carboxyl-2-methyl-3-thienyl)perfluorocyclopentene (H2dae), which acts as a bridging ligand. As a result, two new compounds of the general formula [{LnIII2(dae)3(DMSO)3(MeOH)}⋅10 MeOH]n(M=Dy for 1 a and Ho for 2) and two additional pseudo-polymorphs [{DyIII2(dae)3(DMSO)3(H2O)}⋅x MeOH]n(1 b) and [{DyIII2(dae)3(DMSO)3(DMSO)}⋅x MeOH]n(1 c) were obtained. All four compounds have 2D coordination-layer topologies, in which carboxylate-bridged Ln2units are linked together by dae2−anions into grid-like frameworks. All four compounds exhibited a strong reversible photochromic response to UV/Vis light. Moreover, both 1 a and 2 show field-induced SMM behavior. The slow magnetic relaxation of 1 a is influenced by the photoisomerization reaction leading to the observation of the cross-effect: photocontrolled SMM behavior.",

keywords = "lanthanides, layered compounds, magnetic properties, photochromism, single-molecule magnets",

author = "Dawid Pinkowicz and Min Ren and Zheng, {Li Min} and Saki Sato and Miki Hasegawa and Masakazu Morimoto and Masahiro Irie and Breedlove, {Brian K.} and Goulven Cosquer and Keiichi Katoh and Masahiro Yamashita",

note = "Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research (S) (grant no. 20225003). M.M. and M.I. acknowledge the financial support of MEXT-Supported Program for the Strategic Research Foundation at Private Universities. D.P. gratefully acknowledges the financial support of the EC REA within the Marie Curie International Outgoing Fellowship, project MultiCyChem (grant agreement no. PIOF-GA-2011-298569). Publisher Copyright: {\textcopyright} 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2014",

month = sep,

day = "22",

doi = "10.1002/chem.201402647",

language = "English",

volume = "20",

pages = "12502--12513",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "Wiley-VCH Verlag",

number = "39",

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TY - JOUR

T1 - Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light

AU - Pinkowicz, Dawid

AU - Ren, Min

AU - Zheng, Li Min

AU - Sato, Saki

AU - Hasegawa, Miki

AU - Morimoto, Masakazu

AU - Irie, Masahiro

AU - Breedlove, Brian K.

AU - Cosquer, Goulven

AU - Katoh, Keiichi

AU - Yamashita, Masahiro

N1 - Funding Information: This work was financially supported by a Grant-in-Aid for Scientific Research (S) (grant no. 20225003). M.M. and M.I. acknowledge the financial support of MEXT-Supported Program for the Strategic Research Foundation at Private Universities. D.P. gratefully acknowledges the financial support of the EC REA within the Marie Curie International Outgoing Fellowship, project MultiCyChem (grant agreement no. PIOF-GA-2011-298569). Publisher Copyright: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2014/9/22

Y1 - 2014/9/22

N2 - Lanthanide-based extended coordination frameworks showing photocontrolled single-molecule magnet (SMM) behavior were prepared by combining highly anisotropic DyIIIand HoIIIions with the carboxylato-functionalized photochromic molecule 1,2-bis(5-carboxyl-2-methyl-3-thienyl)perfluorocyclopentene (H2dae), which acts as a bridging ligand. As a result, two new compounds of the general formula [{LnIII2(dae)3(DMSO)3(MeOH)}⋅10 MeOH]n(M=Dy for 1 a and Ho for 2) and two additional pseudo-polymorphs [{DyIII2(dae)3(DMSO)3(H2O)}⋅x MeOH]n(1 b) and [{DyIII2(dae)3(DMSO)3(DMSO)}⋅x MeOH]n(1 c) were obtained. All four compounds have 2D coordination-layer topologies, in which carboxylate-bridged Ln2units are linked together by dae2−anions into grid-like frameworks. All four compounds exhibited a strong reversible photochromic response to UV/Vis light. Moreover, both 1 a and 2 show field-induced SMM behavior. The slow magnetic relaxation of 1 a is influenced by the photoisomerization reaction leading to the observation of the cross-effect: photocontrolled SMM behavior.

AB - Lanthanide-based extended coordination frameworks showing photocontrolled single-molecule magnet (SMM) behavior were prepared by combining highly anisotropic DyIIIand HoIIIions with the carboxylato-functionalized photochromic molecule 1,2-bis(5-carboxyl-2-methyl-3-thienyl)perfluorocyclopentene (H2dae), which acts as a bridging ligand. As a result, two new compounds of the general formula [{LnIII2(dae)3(DMSO)3(MeOH)}⋅10 MeOH]n(M=Dy for 1 a and Ho for 2) and two additional pseudo-polymorphs [{DyIII2(dae)3(DMSO)3(H2O)}⋅x MeOH]n(1 b) and [{DyIII2(dae)3(DMSO)3(DMSO)}⋅x MeOH]n(1 c) were obtained. All four compounds have 2D coordination-layer topologies, in which carboxylate-bridged Ln2units are linked together by dae2−anions into grid-like frameworks. All four compounds exhibited a strong reversible photochromic response to UV/Vis light. Moreover, both 1 a and 2 show field-induced SMM behavior. The slow magnetic relaxation of 1 a is influenced by the photoisomerization reaction leading to the observation of the cross-effect: photocontrolled SMM behavior.

KW - lanthanides

KW - layered compounds

KW - magnetic properties

KW - photochromism

KW - single-molecule magnets

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ER -

Control of the Single-Molecule Magnet Behavior of Lanthanide-Diarylethene Photochromic Assemblies by Irradiation with Light

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Keywords

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